Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
technology trade » technology trends, technology transfer, technology transfers
trade insulation » trade regulation, grade inflation, trade innovation
insulation ratio » information ratio, inflation rate, inflation rates
developing lin » developing long, developing lean, developing lung
a developing » a development
ratio price » option price
lin afrique » en afrique, l afrique
costs a » costs _, costs 4

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: technology trade insulation ratio price data communications costs a developing lin afrique.*.